a) A ball is thrown upward with a speed of 5ms! from a top of 100m building as shown in Fig. QI(a). One second later a ball B is thrown upward with a speed of 20ms- from the ground. Caleulate the time after ball A is thrown and the height from the ground when the two balls meet. Sms" 20ms )B Fig. Ql(a) b) During monsoon season, a rescue boat is cruising at a speed of 15ms' in the direction shown in Fig. QI(b). At that instance, the water current is 5ms!. Compute the relative speed of the boat with respect to water. Sms" 15ms 100m
a) A ball is thrown upward with a speed of 5ms! from a top of 100m building as shown in Fig. QI(a). One second later a ball B is thrown upward with a speed of 20ms- from the ground. Caleulate the time after ball A is thrown and the height from the ground when the two balls meet. Sms" 20ms )B Fig. Ql(a) b) During monsoon season, a rescue boat is cruising at a speed of 15ms' in the direction shown in Fig. QI(b). At that instance, the water current is 5ms!. Compute the relative speed of the boat with respect to water. Sms" 15ms 100m
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Transcribed Image Text:1.
a) A ball is thrown upward with a speed of 5ms! from a top of 100m building as
shown in Fig. QI(a). One second later a ball B is thrown upward with a speed of
20ms' from the ground. Calculate the time after ball A is thrown and the height
from the ground when the two balls meet.
Sms"
20ms
Fig. QI(a)
b) During monsoon season, a rescue boat is cruising at a speed of 15ms' in the
direction shown in Fig. QI(b). At that instance, the water current is 5ms!.
Compute the relative speed of the boat with respect to water.
15
Sms"
15ms"
30
100m
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